OAM
IRM icon

OP Asset Management’s Iron Mountain IRM Stock Holding History

OP Asset Management’s Portfolio IRM Stock Details IRM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$3.14M Sell
30,698
-2,219
-7% -$221K 0.03% 344
2025
Q4 		$2.73M Buy
32,917
+283
+0.9% +$26.5K 0.03% 363
2025
Q3 		$3.33M Buy
32,634
+1,861
+6% +$179K 0.04% 325
2025
Q2 		$3.16M Buy
30,773
+464
+2% +$43.7K 0.05% 325
2025
Q1 		$2.61M Buy
+30,309
New +$2.92M 0.04% 355

Other funds holding IRM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $57.6B AUM 8.03% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

OP Asset Management's IRM Position: Q1 2026 in Review

OP Asset Management reduced its Iron Mountain (IRM) stake by 6.7% in Q1 2026, selling an estimated $221K and leaving 30,698 shares worth $3.14M. The position accounts for 0.03% of the portfolio, ranked #344.

OP Asset Management first reported a position in IRM in Q1 2025 and has held it in 5 quarters since. The position peaked at $3.33M in Q3 2025. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

  • OP Asset Management held 30,698 shares of Iron Mountain worth $3.14M as of Q1 2026.
  • OP Asset Management sold 2,219 Iron Mountain shares in Q1 2026, an estimated $221K.
  • Iron Mountain made up 0.03% of OP Asset Management's portfolio in Q1 2026, its #344 holding.
  • OP Asset Management first reported a position in Iron Mountain in Q1 2025 and has held it in 5 quarters since.
  • OP Asset Management's Iron Mountain position peaked at $3.33M in Q3 2025.
  • 1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on OP Asset Management's 13F filing for Q1 2026, filed 9 Apr 2026.